He also encouraged people to "be respectful and chill out" as the trouble escalated.

The world premiere of Electric Daisy Carnival Experience and a subsequent after party were both thought to be private, ticket-only events.

Police closed down Hollywood Boulevard between Highland Avenue and Orange Avenue. However, they were met with oppositions from some fans who reportedly began fighting, throwing bottles and climbing on to police cars.

They fired riot bean bag guns into the crowd and the road closures caused traffic jams in the surrounding area.